How to wire a new three plug socket

If your socket is flush-mounted, it’s very easy to replace it with a surface-mounted double socket. You can either get a special socket conversion box to help you do this, or use a standard double socket and drill and plug the wall (as shown here). If you want your socket to be flush-mounted, you’ll need to take out the old box and make a larger recess for a new one.

Safety first

If the cable won’t reach the terminals of the new socket without straining, don’t pull it. Use a specially designed crimp or terminal block to attach a new short length of cable. But only do this if there’s room for it inside the mounting box – all wiring connections must be accessible, not buried in the wall behind.

a PCU board

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